In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC and Bang & Olufsen Beoplay H4 2nd Generation. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 22.3 cm | |
| Width | - | 18 cm | |
| Depth | - | 5.2 cm | |
| Weight | 227 g | 244 g | EPOS I SENNHEISER IMPACT MB 660 UC are lighter than EPOS I SENNHEISER IMPACT MB 660 UC headphones. |
| Colour | - | Matte black | Limestone | |
| Body Material | - | Stainless steel, aluminium, polymer | |
| Earpad Material | - | Leather | |
| Recommended Use | Portable electronics, computer | Portable electronics | |
| Bluetooth Range (Operating Distance) | 25 m | 10 m | EPOS I SENNHEISER IMPACT MB 660 UC have a greater operating distance than Bang & Olufsen Beoplay H4 2nd Generation. |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Adjustable Headband | - | Yes | |
| Foldable | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 4.2 | Both headphones have the same Bluetooth version. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | - | |
| Bluetooth Audio Codec | SBC, aptX | - | |
| Active Noise Cancelling | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | NoiseGard active noise compensation | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 17 - 23000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC offer a larger frequency range than Bang & Olufsen Beoplay H4 2nd Generation. |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 118 dB | 91 dB/mW | EPOS I SENNHEISER IMPACT MB 660 UC have higher sensitivity than Bang & Olufsen Beoplay H4 2nd Generation. |
| Impedance | 46 Ohm | 20 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | 150 - 6800 Hz | - | |
| Microphones Included | 3 | - |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Controls | - | Volume control, answer/end, play/pause, next/previous track, pair mode |
|---|
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Cable Type | Audio cable Micro-USB cable |
Headphones cable - detachable - braided fabric - 1.25 m Micro-USB charge cable - detachable - 25 cm |
|
|---|---|---|---|
| Cable Length | - | 1.25 m |
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 700 mAh | 600 mAh | EPOS I SENNHEISER IMPACT MB 660 UC have a higher battery capacity than Bang & Olufsen Beoplay H4 2nd Generation. |
| Battery Life | 30 hours | 19 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC lasts longer on a single charge than the Bang & Olufsen Beoplay H4 2nd Generation. |
| Standby Time | 360 hours | - | |
| Charging Time | 3 hours | 2.5 hour(s) | Bang & Olufsen Beoplay H4 2nd Generation recharge faster than EPOS I SENNHEISER IMPACT MB 660 UC. |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Transmission Range | 25 m | - |
|---|
| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Connector Type | - | Headphones (mini-phone 3.5mm) Power input (5 pin Micro-USB Type B) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | - | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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